Sg3524 Texas Instrument Way


   
  
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

D Complete Pulse-Width Modulation (PWM) D D D

SG2524 . . . D OR N PACKAGE SG3524 . . . D, N, OR NS PACKAGE (TOP VIEW)

Power-Control Circuitry Uncommitted Outputs for Single-Ended or Push-Pull Applications Low Standby Current . . . 8 mA Typ Interchangeable With Industry Standard SG2524 and SG3524

IN– IN+ OSC OUT CURR LIM+ CURR LIM– RT CT GND

description/ordering information

1

16

2

15

3

14

4

13

5

12

6

11

7

10

REF OUT VCC EMIT 2 COL 2 COL 1 EMIT 1 SHUTDOWN COMP

The SG2524 and SG3524 incorporate all the 9 8 functions required in the construction of a regulating power supply, inverter, or switching regulator on a single chip. They also can be used as the control element for high-power-output applications. The SG2524 and SG3524 were designed for switching regulators of either polarity, transformer-coupled dc-to-dc converters, transformerless voltage doublers, and polarity-converter applications employing fixed-frequency, pulse-width modulation (PWM) techniques. The complementary output allows either single-ended or push-pull application. Each device includes an on-chip regulator, error amplifier, programmable oscillator, pulse-steering flip-flop, two uncommitted pass transistors, a high-gain comparator, and current-limiting and shutdown circuitry. ORDERING INFORMATION TA

INPUT REGULATION MAX (mV)

PACKAGE† PDIP (N)

0°C to 70°C

–25°C to 85°C

30

ORDERABLE PART NUMBER

TOP-SIDE MARKING

Tube of 25

SG3524N

Tube of 40

SG3524D

Reel of 2500

SG3524DR

SOP (NS)

Reel of 2000

SG3524NSR

SG3524

PDIP (N)

Tube of 25

SG2524N

SG2524N

Tube of 40

SG2524D

Reel of 2500

SG2524DR

SOIC (D)

20 SOIC (D)

SG3524N SG3524

SG2524

† Package drawings, standard packing quantities, thermal data, symboliztion, and PCB design guidelines are available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright  2003, Texas Instruments Incorporated

      ! "#$ !  %#&'"  ( $) (#" ! "  !%$"" ! %$ *$ $!  $+! ! #$ ! ! (( , -) (#"  %"$!!. ($!  $"$!!'- "'#($ $! .  '' %$ $!)

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

functional block diagram VCC

15

16

Reference Regulator

REF OUT

Vref 12

Vref

Vref RT

Oscillator

CURR LIM–

SHUTDOWN

Comparator

9 4 5

EMIT 2 OSC OUT

–

CURR LIM+

2

+

COMP

1

EMIT 1 COL 2

Vref

Vref

IN+

14 3

6

CT 7

IN–

11 13

T

COL 1

Error Amplifier Vref + –

10 1 kΩ 10 kΩ

GND

8

NOTE A: Resistor values shown are nominal.

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Collector output current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA Reference output current, IO(ref) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Current through CT terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 mA Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Package thermal impedance, θJA (see Notes 3 and 4): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values are with respect to network ground terminal. 2. The reference regulator may be bypassed for operation from a fixed 5-V supply by connecting the VCC and reference output (REF OUT) pin both to the supply voltage. In this configuration, the maximum supply voltage is 6 V. 3. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operation at the absolute maximum TJ of 150°C can impact reliability. 4. The package thermal impedance is calculated in accordance with JESD 51-7.

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

recommended operating conditions VCC

MIN

MAX

Supply voltage

8

40

V

Reference output current

0

50

mA

–0.03

–2

mA

Current through CT terminal RT CT

Timing resistor

1.8

100

kΩ

0.001

0.1

µF

SG2524

–25

85

SG3524

0

70

Timing capacitor

TA

Operating free-air free air temperature

UNIT

°C

electrical characteristics over recommended operating free-air temperature range, VCC = 20 V, f = 20 kHz (unless otherwise noted) reference section PARAMETER

TEST CONDITIONS†

Output voltage

SG2524 MIN TYP‡ 4.8

Input regulation Ripple rejection Output regulation Output voltage change with temperature Short-circuit output current§

MAX

5

5.2

VCC = 8 V to 40 V f = 120 Hz

10

20

IO = 0 mA to 20 mA TA = MIN to MAX

20

50

0.3%

1%

SG3524 MIN TYP‡ 4.6

66

MAX

5

5.4

V

10

30

mV

20

50

mV

0.3%

1%

66

dB

Vref = 0 100 100 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values, except for temperature coefficients, are at TA = 25°C § Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula:

Ǹ

UNIT

mA

ȍ (xn * X)2

s +

N

n+1

N*1

oscillator section PARAMETER fosc

Oscillator frequency Standard deviation of frequency§

∆fosc

Frequency change with voltage Frequency change with temperature Output amplitude at OSC OUT

TEST CONDITIONS† CT = 0.001 µF,

RT = 2 kΩ All values of voltage, temperature, resistance, and capacitance constant VCC = 8 V to 40 V, TA = MIN to MAX

MIN

TYP‡

UNIT kHz

5%

TA = 25°C

1% 2% 3.5

V

tw Output pulse duration (width) at OSC OUT TA = 25°C 0.5 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values, except for temperature coefficients, are at TA = 25°C § Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula:

µs

Ǹ

TA = 25°C CT = 0.01 µF,

MAX

450

ȍ (xn * X)2

s +

N

n+1

N*1

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

error amplifier section TEST CONDITIONS†

PARAMETER VIO IIB

Input offset voltage

SG2524 MIN TYP‡

VIC = 2.5 V VIC = 2.5 V

Input bias current Open-loop voltage amplification

VICR

Common-mode input voltage range

CMMR

Common-mode rejection ratio

B1

Unity-gain bandwidth

MAX

0.5

5

2

10

72

80

1.8 to 3.4

TA = 25°C

SG3524 MIN TYP‡

60

MAX

UNIT

2

10

mV

2

10

µA

80

dB

1.8 to 3.4

V

70

70

3

3

Output swing

TA = 25°C 0.5 3.8 0.5 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values, except for temperature coefficients, are at TA = 25°C

dB MHz 3.8

V

output section TEST CONDITIONS†

PARAMETER V(BR)CE

Collector-emitter breakdown voltage Collector-emitter saturation voltage

tr tf

Turn-off voltage rise time

TYP‡

MAX

40

Collector off-state current Vsat VO

MIN

VCE = 40 V IC = 50 mA

Emitter output voltage

VC = 20 V, RC = 2 kΩ

IE = –250 µA

17

UNIT V

0.01

50

µA

1

2

V

18

V

0.2

µs

Turn-on voltage fall time RC = 2 kΩ 0.1 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values, except for temperature coefficients, are at TA = 25°C.

µs

comparator section TEST CONDITIONS†

PARAMETER Maximum duty cycle, each output

MIN

MAX

UNIT

45% Zero duty cycle

VIT

TYP‡

Inp t threshold voltage Input oltage at COMP

1

Maximum duty cycle

V

3.5

µA

IIB Input bias current –1 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values, except for temperature coefficients, are at TA = 25°C.

current limiting section TEST CONDITIONS†

PARAMETER VI V(SENSE)

Input voltage range (either input)

MIN

TYP‡

MAX

UNIT

200

225

mV

–1 to1

Sense voltage at TA = 25°C Temperature coefficient of sense voltage

V(IN+) mV, V(COMP) = 2 V (IN ) – V(IN (IN–)) ≥ 50 mV

175

V 0.2

mV/°C

‡ All typical values, except for temperature coefficients, are at TA = 25°C.

total device PARAMETER Ist

Standby current

TEST CONDITIONS VCC = 40 V, IN–, CURR LIM+, CT, GND, COMP, EMIT 1, EMIT 2 grounded, IN+ at 2 V, All other inputs and outputs open

‡ All typical values, except for temperature coefficients, are at TA = 25°C.

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MIN

TYP‡

MAX

8

10

UNIT mA



   
  
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

PARAMETER MEASUREMENT INFORMATION VREF

2 kΩ

VCC = 8 V to 40 V

10 kΩ

15 VCC SG2524 or SG3524

2 kΩ 10 2

10 kΩ 1 9 4

1 kΩ

5

SHUTDOWN

3

OSC OUT

IN+

16

REF OUT

IN–

VREF

13

COL 2

CURR LIM+ CURR LIM–

Outputs

12

COL 1

14 11

EMIT 1

CT

RT

2 kΩ 1W

0.1 µF

EMIT 2

6

2 kΩ 1W

COMP

2 kΩ 7

(Open)

CT RT

GND 8

Figure 1. General Test Circuit

VCC Circuit Under Test

tf

2 kΩ

tr ≈VCC

Output

90%

90% Output 10%

TEST CIRCUIT

10%

≈0 V

VOLTAGE WAVEFORMS

Figure 2. Switching Times

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

OPEN-LOOP VOLTAGE AMPLIFICATION OF ERROR AMPLIFIER vs FREQUENCY 90

OSCILLATOR FREQUENCY vs TIMING RESISTANCE 1M

RL = ∞

VCC = 20 V TA = 25°C

80

ÏÏÏÏ ÏÏÏÏÏ ÏÏÏÏÏ ÏÏÏÏÏ ÏÏÏÏ ÏÏÏÏ

70 60

RL = 1 MΩ

50

RL = 300 kΩ

40

RL = 100 kΩ

30

CT = 0 CT = 0.001 µF CT = 0.003 µF CT = 0.01 µF

400 k f osc – Oscillator Frequency – Hz

Open-Loop Voltage Amplification of Error Amplifier – dB

TYPICAL CHARACTERISTICS

RL = 30 kΩ

20 10

100 k 40 k

10 k 4k CT = 0.03 µF

1k

CT = 0.1 µF

400 0

VCC = 20 V TA = 25°C

RL is resistance from COMP to ground

–10 100

1k

10 k

100 k

1M

100

10 M

1

2

Frequency – Hz

4

Figure 4 OUTPUT DEAD TIME vs TIMING CAPACITANCE 10

4 Output Dead Time – µs

10

1

0.4

0.1 0.001

20

40

RT – Timing Resistance – kΩ

Figure 3

0.01 0.004 0.04 CT – Timing Capacitance – µF

Figure 5

6

7

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0.1

70 100



   
  
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

PRINCIPLES OF OPERATION† The SG2524 is a fixed-frequency pulse-width-modulation (PWM) voltage-regulator control circuit. The regulator operates at a fixed frequency that is programmed by one timing resistor, RT, and one timing capacitor, CT. RT establishes a constant charging current for CT. This results in a linear voltage ramp at CT, which is fed to the comparator, providing linear control of the output pulse duration (width) by the error amplifier. The SG2524 contains an onboard 5-V regulator that serves as a reference, as well as supplying the SG2524 internal regulator control circuitry. The internal reference voltage is divided externally by a resistor ladder network to provide a reference within the common-mode range of the error amplifier as shown in Figure 6, or an external reference can be used. The output is sensed by a second resistor divider network and the error signal is amplified. This voltage is then compared to the linear voltage ramp at CT. The resulting modulated pulse out of the high-gain comparator then is steered to the appropriate output pass transistor (Q1 or Q2) by the pulse-steering flip-flop, which is synchronously toggled by the oscillator output. The oscillator output pulse also serves as a blanking pulse to ensure both outputs are never on simultaneously during the transition times. The duration of the blanking pulse is controlled by the value of CT. The outputs may be applied in a push-pull configuration in which their frequency is one-half that of the base oscillator, or paralleled for single-ended applications in which the frequency is equal to that of the oscillator. The output of the error amplifier shares a common input to the comparator with the current-limiting and shut-down circuitry and can be overridden by signals from either of these inputs. This common point is pinned out externally via the COMP pin, which can be employed to either control the gain of the error amplifier or to compensate it. In addition, the COMP pin can be used to provide additional control to the regulator.

APPLICATION INFORMATION† oscillator The oscillator controls the frequency of the SG2524 and is programmed by RT and CT as shown in Figure 4. f [

1.30 R C T T

where: RT is in kΩ CT is in µF f is in kHz Practical values of CT fall between 0.001 µF and 0.1 µF. Practical values of RT fall between 1.8 kΩ and 100 kΩ. This results in a frequency range typically from 130 Hz to 722 kHz.

blanking The output pulse of the oscillator is used as a blanking pulse at the output. This pulse duration is controlled by the value of CT as shown in Figure 5. If small values of CT are required, the oscillator output pulse duration can be maintained by applying a shunt capacitance from OSC OUT to ground.

synchronous operation When an external clock is desired, a clock pulse of approximately 3 V can be applied directly to the oscillator output terminal. The impedance to ground at this point is approximately 2 kΩ. In this configuration, RTCT must be selected for a clock period slightly greater than that of the external clock.

† Throughout these discussions, references to the SG2524 apply also to the SG3524.

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

APPLICATION INFORMATION† synchronous operation (continued) If two or more SG2524 regulators are operated synchronously, all oscillator output terminals must be tied together. The oscillator programmed for the minimum clock period is the master from which all the other SG2524s operate. In this application, the CTRT values of the slaved regulators must be set for a period approximately 10% longer than that of the master regulator. In addition, CT (master) = 2 CT (slave) to ensure that the master output pulse, which occurs first, has a longer pulse duration and, subsequently, resets the slave regulators.

voltage reference The 5-V internal reference can be employed by use of an external resistor divider network to establish a reference common-mode voltage range (1.8 V to 3.4 V) within the error amplifiers (see Figure 6), or an external reference can be applied directly to the error amplifier. For operation from a fixed 5-V supply, the internal reference can be bypassed by applying the input voltage to both the VCC and VREF terminals. In this configuration, however, the input voltage is limited to a maximum of 6 V. To Positive Output Voltage

REF OUT

5 kΩ

R2

5 kΩ

REF OUT

2.5 V

R1 2.5 V

+

+

– 5 kΩ

– 5 kΩ

R1

R2 To Negative Output Voltage

V

O

+ 2.5 V R1 ) R2 R1

V

O

ǒ

Ǔ

+ 2.5 V 1 * R2 R1

Figure 6. Error-Amplifier Bias Circuits

error amplifier The error amplifier is a differential-input transconductance amplifier. The output is available for dc gain control or ac phase compensation. The compensation node (COMP) is a high-impedance node (RL = 5 MΩ). The gain of the amplifier is AV = (0.002 Ω–1)RL and easily can be reduced from a nominal 10,000 by an external shunt resistance from COMP to ground. Refer to Figure 3 for data.

compensation COMP, as previously discussed, is made available for compensation. Since most output filters introduce one or more additional poles at frequencies below 200 Hz, which is the pole of the uncompensated amplifier, introduction of a zero to cancel one of the output filter poles is desirable. This can be accomplished best with a series RC circuit from COMP to ground in the range of 50 kΩ and 0.001 µF. Other frequencies can be canceled by use of the formula f ≈ 1/RC.

† Throughout these discussions, references to the SG2524 apply also to the SG3524.

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

APPLICATION INFORMATION† shutdown circuitry COMP also can be employed to introduce external control of the SG2524. Any circuit that can sink 200 µA can pull the compensation terminal to ground and, thus, disable the SG2524. In addition to constant-current limiting, CURR LIM+ and CURR LIM– also can be used in transformer-coupled circuits to sense primary current and shorten an output pulse should transformer saturation occur. CURR LIM– also can be grounded to convert CURR LIM+ into an additional shutdown terminal.

current limiting A current-limiting sense amplifier is provided in the SG2524. The current-limiting sense amplifier exhibits a threshold of 200 mV ±25 mV and must be applied in the ground line since the voltage range of the inputs is limited to 1 V to –1 V. Caution should be taken to ensure the –1-V limit is not exceeded by either input, otherwise, damage to the device may result. Foldback current limiting can be provided with the network shown in Figure 7. The current-limit schematic is shown in Figure 8.

EMIT 1 EMIT 2

11 14

VO R1

I

+

O(max)

1 Rs

ǒ

200 mV )

V

Ǔ

R2 O R1 ) R2

SG2524 R2 CURR LIM– CURR LIM+

5

I Rs

OS

+

200 mV Rs

4

Figure 7. Foldback Current Limiting for Shorted Output Conditions

CT

COMP

Comparator Error Amplifier

CURR LIM–

Constant-Current Source

CURR LIM+

Figure 8. Current-Limit Schematic † Throughout these discussions, references to the SG2524 apply also to the SG3524.

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

APPLICATION INFORMATION† output circuitry The SG2524 contains two identical npn transistors, the collectors and emitters of which are uncommitted. Each transistor has antisaturation circuitry that limits the current through that transistor to a maximum of 100 mA for fast response.

general There are a wide variety of output configurations possible when considering the application of the SG2524 as a voltage-regulator control circuit. They can be segregated into three basic categories:

D Capacitor-diode-coupled voltage multipliers D Inductor-capacitor-implemented single-ended circuits D Transformer-coupled circuits Examples of these categories are shown in Figures 9, 10, and 11, respectively. Detailed diagrams of specific applications are shown in Figures 12–15. D1 VO

VI

VI > VO

D1

VO

VI

VI < VO

D1 –VO VI | +VI | > | – VO |

Figure 9. Capacitor-Diode-Coupled Voltage-Multiplier Output Stages

† Throughout these discussions, references to the SG2524 apply also to the SG3524.

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

APPLICATION INFORMATION†

VO

VI

VI > VO

VO

VI

VI < VO

–VO VI | +VI | < | – VO |

Figure 10. Single-Ended Inductor Circuit

VI

ÏÏ

VO

VO

VI

Flyback

Push-Pull

Figure 11. Transformer-Coupled Outputs

† Throughout these discussions, references to the SG2524 apply also to the SG3524.

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SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

APPLICATION INFORMATION† VCC = 15 V

15

15 kΩ 5 kΩ 0.1 µF

1 5 kΩ

5 kΩ

2 16

2 kΩ

6

SG2524

3

EMIT 1 COL 1

IN+

12 20 µF

COL 2 13

RT

EMIT 2 14 CURR LIM+ . CURR LIM–

OSC OUT

COMP

–5 V 20 mA

11

REF OUT

7 C T 10 SHUTDOWN

0.01 µF

1N916

VCC IN–

1N916

+

4 5 1N916 9

+

50 µF

GND 8

Figure 12. Capacitor-Diode Output Circuit

VCC = 5 V 1N916 15 V +

100 µF

25 kΩ

15

5 kΩ 1

5 kΩ

2 IN+

5 kΩ

16 2 kΩ

0.02 µF

IN–

300 Ω

VCC SG2524

EMIT 1 COL 1

REF OUT

COL 2

6 R T

EMIT 2

200 Ω 20T

11 12

0.1 µF

1 MΩ

20 mA + –15 V

1N916

14

TIP29A

1N916

620 Ω

2N2222 510 Ω

0.001 µF 4.7 µF

+

Input Return

Figure 13. Flyback Converter Circuit

†Throughout these discussions, references to the SG2524 apply also to the SG3524.

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50T

13

4 7 C T CURR LIM+ 10 5 SHUTDOWN CURR LIM– 3 9 OSC OUT COMP GND

50 µF 50 µF

8

12

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1Ω



   
  
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

APPLICATION INFORMATION† VCC = 28 V

5 kΩ

5 kΩ

IN+

16

REF OUT

6 7

0.02 µF

11 EMIT 1 SG2524 12 COL 1

IN–

2

3 kΩ

5V 1A

VCC

1

5 kΩ

0.9 mH

15

5 kΩ

0.1 µF

TIP115

COL 2

RT

EMIT 2

CT

CURR LIM+

+

13

500 µF

1N3880 3 kΩ

14 4

10

5 SHUT CURR LIM– DOWN 3 9 OSC OUT COMP GND

0.001 µF

8

50 kΩ 0.1 Ω Input Return

Figure 14. Single-Ended LC Circuit

VCC = 28 V

15

1 kΩ 1W

VCC

11

5 kΩ 5 kΩ

1 5 kΩ

0.1 µF

5 kΩ

2 kΩ

0.01 µF

IN–

2 IN+ 16 6

1 kΩ 1W

COL 2

RT

EMIT 2

7 C T

CURR LIM+

TIR101A +

1 mH

EMIT 1 SG2524 12 COL 1

REF OUT

TIP31A

+ 100 Ω

20T

5T

20T

5T

13 100 Ω

1500 µF

5V 5A –

14 4

10 SHUT 5 CURR LIM– DOWN 9 3 COMP OSC OUT GND

TIP31A

0.001 µF

0.1 Ω +

8 20 kΩ

100 µF

Figure 15. Push-Pull Transformer-Coupled Circuit †Throughout these discussions, references to the SG2524 apply also to the SG3524.

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13

IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products

Applications

Amplifiers

amplifier.ti.com

Audio

www.ti.com/audio

Data Converters

dataconverter.ti.com

Automotive

www.ti.com/automotive

DSP

dsp.ti.com

Broadband

www.ti.com/broadband

Interface

interface.ti.com

Digital Control

www.ti.com/digitalcontrol

Logic

logic.ti.com

Military

www.ti.com/military

Power Mgmt

power.ti.com

Optical Networking

www.ti.com/opticalnetwork

Microcontrollers

microcontroller.ti.com

Security

www.ti.com/security

Low Power Wireless

www.ti.com/lpw

Telephony

www.ti.com/telephony

Video & Imaging

www.ti.com/video

Wireless

www.ti.com/wireless

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2007, Texas Instruments Incorporated

PACKAGE OPTION ADDENDUM www.ti.com

4-Jun-2007

PACKAGING INFORMATION Orderable Device

Status (1)

Package Type

Package Drawing

Pins Package Eco Plan (2) Qty

SG2524D

ACTIVE

SOIC

D

16

40

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG2524DE4

ACTIVE

SOIC

D

16

40

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG2524DG4

ACTIVE

SOIC

D

16

40

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG2524DR

ACTIVE

SOIC

D

16

2500 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG2524DRE4

ACTIVE

SOIC

D

16

2500 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG2524DRG4

ACTIVE

SOIC

D

16

2500 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

Lead/Ball Finish

MSL Peak Temp (3)

SG2524J

OBSOLETE

CDIP

J

16

TBD

Call TI

SG2524N

ACTIVE

PDIP

N

16

25

Pb-Free (RoHS)

CU NIPDAU

Call TI N / A for Pkg Type

SG2524NE4

ACTIVE

PDIP

N

16

25

Pb-Free (RoHS)

CU NIPDAU

N / A for Pkg Type

SG3524D

ACTIVE

SOIC

D

16

40

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524DE4

ACTIVE

SOIC

D

16

40

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524DG4

ACTIVE

SOIC

D

16

40

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524DR

ACTIVE

SOIC

D

16

2500 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524DRE4

ACTIVE

SOIC

D

16

2500 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524DRG4

ACTIVE

SOIC

D

16

2500 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524J

OBSOLETE

CDIP

J

16

TBD

Call TI

SG3524N

ACTIVE

PDIP

N

16

25

Pb-Free (RoHS)

CU NIPDAU

N / A for Pkg Type

SG3524NE4

ACTIVE

PDIP

N

16

25

Pb-Free (RoHS)

CU NIPDAU

N / A for Pkg Type

SG3524NS

OBSOLETE

SO

NS

16

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524NSR

ACTIVE

SO

NS

16

2000 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524NSRE4

ACTIVE

SO

NS

16

2000 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

SG3524NSRG4

ACTIVE

SO

NS

16

2000 Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

(1)

Call TI

The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.

Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com

4-Jun-2007

(2)

Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3)

MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

Addendum-Page 2

PACKAGE MATERIALS INFORMATION www.ti.com

19-Mar-2008

TAPE AND REEL INFORMATION

*All dimensions are nominal

Device

Package Package Pins Type Drawing

SG2524DR

SOIC

SG3524DR SG3524NSR

SPQ

Reel Reel Diameter Width (mm) W1 (mm)

A0 (mm)

B0 (mm)

K0 (mm)

P1 (mm)

W Pin1 (mm) Quadrant

8.0

16.0

Q1

D

16

2500

330.0

16.4

6.5

10.3

2.1

SOIC

D

16

2500

330.0

16.4

6.5

10.3

2.1

8.0

16.0

Q1

SO

NS

16

2000

330.0

16.4

8.2

10.5

2.5

12.0

16.0

Q1

Pack Materials-Page 1

PACKAGE MATERIALS INFORMATION www.ti.com

19-Mar-2008

*All dimensions are nominal

Device

Package Type

Package Drawing

Pins

SPQ

Length (mm)

Width (mm)

Height (mm)

SG2524DR

SOIC

D

16

2500

333.2

345.9

28.6

SG3524DR

SOIC

D

16

2500

333.2

345.9

28.6

SG3524NSR

SO

NS

16

2000

346.0

346.0

33.0

Pack Materials-Page 2

IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Amplifiers Data Converters DSP Clocks and Timers Interface Logic Power Mgmt Microcontrollers RFID RF/IF and ZigBee® Solutions

amplifier.ti.com dataconverter.ti.com dsp.ti.com www.ti.com/clocks interface.ti.com logic.ti.com power.ti.com microcontroller.ti.com www.ti-rfid.com www.ti.com/lprf

Applications Audio Automotive Broadband Digital Control Medical Military Optical Networking Security Telephony Video & Imaging Wireless

www.ti.com/audio www.ti.com/automotive www.ti.com/broadband www.ti.com/digitalcontrol www.ti.com/medical www.ti.com/military www.ti.com/opticalnetwork www.ti.com/security www.ti.com/telephony www.ti.com/video www.ti.com/wireless

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2008, Texas Instruments Incorporated